Q: My colleagues and I are debating the correctness of the following sentence:  If any of the side effects gets serious, contact the study doctor.

A: If you remove the words “of the” from your sentence, you will find the answer(s) readily apparent. If there is one side effect, you’d use the singular:  “If any side effect becomes serious….”  If there is more than one side effect, you’d use the plural:  If any side effects become serious….”

Q: Should “week” or “weeks” be used in the following sentences?

 The changes in serum creatinine remained stable from week/weeks 48 to 96.

Nausea typically develops between the fourth and sixth week/weeks of pregnancy.

A: We would suggest using “weeks” in both examples. It would, of course, not be incorrect to repeat “week,” eg, “…at week 48 and week 96,” but for efficiency you could use “…at weeks 48 and 96.”—Cheryl Iverson, MA